I'm taking orgo I next semester, so I can't give you a direct answer/ coping mechanism. However, as a student I can sympathize with your feelings of defeat and dissatisfaction with your current academic trajectory. I feel like the most important thing for individuals who are interested in professional degrees that require a lot of time, schooling, and money is that your path is not always linear. Organic chemistry may be the first "big" issue you face in this path, but there definitely will be more hardship down the line. The best remedy would be to seek a consistent support system, whether that be joining a study group with other classmates, going to office hours, or talking about your frustration with someone you trust (family or close friends). That way, if you were to face more difficulties, there will always be someone there for you to diminish or even help resolve the issue with you. I wish you the best of luck, you are good enough!